最新ccna课件1_静态路由-动态路由

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1、课程内容第三天课程10:00–12:00生成树原理攻击课静态路由协议动态路由协议Lunch14:00–18:00RIPv1v2EIGRPOSPFRIP/EIGRP/OSPF收链实验单臂路由实验IntroducingRoutingMedium-SizedRoutedNetworkConstructionOutlineRoutingOverviewStaticandDynamicRouteComparisonStaticRouteConfigurationDefaultRouteForwardingConfigurationStaticRoutingConfigurationVerif

2、icationDynamicRoutingProtocolOverviewFeaturesofDynamicRoutingProtocolsTheipclasslessCommandInterVLANRoutingSummaryArouterneedstodothefollowing:识别目标地址；识别数据来源；识别去往目标网络可能的所有路由(路径)；选择前往目标网络的最佳路由；维护路由信息。RouterOperations路由选择----是确定将本地网络外部的数据分组发送到外部的过程.RouterOperations(Cont.)路由----用于前往不与目标网络直接相连的网络Id

3、entifyingStaticandDynamicRoutesStaticRoutesConfigureunidirectionalstaticroutestoandfromastubnetworktoallowcommunicationstooccur.DefinesapathtoanIPdestinationnetworkorsubnetorhostAddress=IPaddressofthenexthoprouterInterface=outboundinterfaceofthelocalrouterRouterX(config)#iproutenetwork[mask]{

4、address

5、interface}[distance][permanent]StaticRouteConfigurationStaticRouteExampleThisisaunidirectionalroute.Youmusthavearouteconfiguredintheoppositedirection.RouterA(config)#iproute172.16.1.0255.255.255.0172.16.2.1RouterA(config)#iproute172.16.1.0255.255.255.0s0/0/0orDefaultRoutesThisrouteallo

6、wsthestubnetworktoreachallknownnetworksbeyondRouterA.VerifyingtheStaticRouteConfigurationRouterX#showiprouteCodes:C-connected,S-static,I-IGRP,R-RIP,M-mobile,B-BGPD-EIGRP,EX-EIGRPexternal,O-OSPF,IA-OSPFinterareaE1-OSPFexternaltype1,E2-OSPFexternaltype2,E-EGPi-IS-IS,L1-IS-ISlevel-1,L2-IS-ISleve

7、l-2,*-candidatedefaultU-per-userstaticrouteGatewayoflastresortis0.0.0.0tonetwork0.0.0.010.0.0.0/8issubnetted,1subnetsC10.1.1.0isdirectlyconnected,Serial0/0/0S*0.0.0.0/0isdirectlyconnected,Serial0StaticrouteLABBenefitsandDrawbacksofStaticRoutingBenefitsofStaticRouting：conservememoryandCPU.conse

8、rvebandwidth.BeapplicableStubNetwork.DrawbacksofStaticRouting：Technicianmustknowthewholenetworkstopology.Administrationandmaintenancedifficulty.Notsuitedforlargenetwork.WhatIsaDynamicRoutingProtocol?动态路由协议是被路由器用来自动地在网络里学习路由和维护路由表的AS：被统一